90012 'British Transport Police' heads for London Euston at Cathiron on 04/02/2003. On the date this photograph was taken, Scotland was experiencing severe adverse snowy weather and locomotives were required to haul, rather than propel trains. This resulted in a number of sets either having the locomotive hauling the DVT or the set facing the wrong way if it had been turned, resulting in the locomotive being on the London end of the train, rather than the usual country end.